JPH0519985Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Field of the Invention> This invention relates to a mounting device for electrical equipment applied to solid state relays and the like.

<Prior art and its problems> Conventionally, for example, in a solid-state relay, one wall 101a of the relay main body 101 is used as a mounting setting wall, as shown in FIG. A pair of mounting pieces 10 constituting mounting means for a control panel (not shown)
2, 103, and engaging protrusions 106, 106 that are fitted between the pair of guide walls 104, 105 on the other end side in the longitudinal direction of the setting wall 101a and located on the one end side in the longitudinal direction. It has been proposed that a fixture rail plate 107 or the like made of synthetic resin is provided as a mounting means for the rail member M.

However, in this type of relay, there is a trend to reduce the dimension W in the width direction in order to reduce the installation space required when multiple relays are used in a row in the width direction. Therefore, in the case of a relay that has the function of mounting to both the control panel and the rail member M as described above, it becomes difficult to install the mounting pieces 102, 103 and the feature rail plate 107 side by side in terms of space.
The above-mentioned fiducial rail plate 107 is merely fitted and held between a pair of guide walls 104, 105, and the supporting strength of the fiducial rail plate 107 in the thickness direction is weak, so there is a risk that the fiducial rail plate 107 may come off from the relay body 101 due to vibration, impact, etc.

<Purpose of the invention> This invention was made in order to solve the problems of the conventional ones mentioned above. Even with a thin type, it is possible to install mounting means for both the control panel and the rail member, and moreover, it is possible to install the mounting means for the control panel and the rail member. It is an object of the present invention to provide a mounting device for electrical equipment that can strengthen the strength.

<Structure and effects of the invention> The electrical equipment mounting device according to this invention has a pair of control panel mounting pieces protruding from each longitudinal end of the rectangular mounting wall of the equipment body made of synthetic resin. A pair of guide walls are formed along the longitudinal direction by being located on both widthwise sides of the other end of the setting wall in the longitudinal direction, and one rail piece of the rail member is provided at one end of the setting wall in the longitudinal direction. A synthetic resin member is provided with a locking protrusion that locks on the rail member, has a locking claw portion on one end that engages with the other rail piece of the rail member, and is configured to be movable forward and backward in the longitudinal direction. A fixture rail plate is fitted between the guide walls, and when both rail pieces of the rail member are respectively locked between the locking projections and the locking claws, the fixture rail plate is elastically deformed. A pair of spring pieces that apply a spring force in the advancing direction to the fixture rail plate are integrally formed on the fixture rail plate, and the guide walls are integrally connected in a state facing the other end of the fixture rail plate. The piece is constituted by the mounting piece on the other end side in the longitudinal direction.

According to this invention, since the connection piece that connects the pair of guide walls into which the fixture rail plate is fitted is made up of one mounting piece for the control panel, even a thinner one can be used for the control panel. The mounting means for both the rail member and the fixture rail member can be easily installed together, and since the connecting piece faces the other end of the fixture rail plate, the holding strength of the fixture rail plate is increased, and vibration resistance and impact resistance are increased. Becomes excellent.

<Embodiment of the invention> An embodiment of the invention will be described below with reference to the drawings.

FIG. 1 is a side sectional view showing an example in which the electrical equipment mounting device according to the invention is applied to a solid state relay.

In the figure, 1 is the relay main body, and a substantially box-shaped rear case 2 made of synthetic resin with an open front end surface.
and a synthetic resin front case 3 fitted into the front open end of the rear case 2. 4 is an engagement hole formed in the rear case 2 and removably engaged with the engagement protrusion 5 on the front case 3 side.

6 is a printed wiring board held in the front case 3 and housed in the rear case 2;
For example, control circuit components 7 such as an input circuit and a trigger circuit are installed. 8 ₁ and 8 ₂ are a pair of input terminals each consisting of a substantially U-shaped conductive plate, and are attached to the front wall of the front case 3 with a part exposed, and one end of each is connected to the printed wiring board. It is electrically connected and fixed at a predetermined location of 6 by soldering. A pair of input terminal screws 9 ₁ and 9 ₂ are screwed into input terminal nuts 10 ₁ and 10 ₂ held in the front wall of the front case 3, respectively. 11 ₁ and 11 ₂ are washers for the pair of input terminals, respectively, and 12 ₁ and 12 ₂ are the input terminals 8 ₁ and 12 2 respectively.
8 ₂ and are electrically connected to each other, and are pivotally connected to the input terminal screws 9 ₁ and 9 ₂ via elongated holes 13 ₁ and 13 ₂ ( Figure 2).

The front case 3 has recessed portions 14 ₁ and 14 ₂ located at both ends in the longitudinal direction. A pair of output terminals 15 ₁ , 15 ₂ made of approximately U-shaped conductive plates are attached to each recessed portion 14 ₁ , 14 ₂ in a partially exposed state, and one end of each is attached to a predetermined position of the printed wiring board 6 . It is electrically connected and fixed in place by soldering. A pair of output terminal screws 16 ₁ and 16 ₂ are screwed into output terminal nuts 17 ₁ and 17 ₂ held in the recessed portions 14 ₁ and 14 ₂ , respectively. 18 ₁ and 18 ₂ are output terminal washers.

The rear wall 2a of the rear case 2 is configured as a rectangular mounting setting wall, and mounting pieces 19 ₁ and 19 ₂ for the control panel are provided at both ends in the longitudinal direction, respectively.
is provided protrudingly, one mounting piece 19 ₁ is formed with a round hole 20 ₁ , and the other mounting piece 19 ₂ is formed with a long hole 2.
0 ₂ is formed. 21 is the above mounting setting wall 2
It is a locking protrusion located on one end side in the longitudinal direction in a and formed toward the other end side, and is attached to one rail piece Ma of the rail member M fitted between the above-mentioned mounting setting wall 2a. It's starting to engage.

As shown in FIGS. 3 and 4, guide walls 2 are provided at both ends of the mounting setting wall 2a in the width direction on the other end side in the longitudinal direction.
2, 23 are erected, and both guide walls 22, 2
3, a rectangular fixture rail plate 24 made of synthetic resin is fitted and held so that it can move forward and backward in the longitudinal direction. One end of this fixture rail plate 24 is integrally formed with a locking claw portion 25 that engages with the other rail piece Mb of the rail member M that is fitted between the fixture rail plate 24 and the mounting setting wall 2a.
Hollow space 2 formed in the fixture rail plate 24
A pair of spring pieces 27 and 28 are connected to the inner wall of the rail member 6 and extend from the other longitudinal end to the one end side in a widening shape as shown in FIG. In this state, the regulating pins 29 and 30 protruding from the mounting setting wall 2a are forced to elastically deform toward each other, applying a spring force to the fixture rail plate 24 in the advancing direction (direction of arrow a). is set to.

Between the pair of guide walls 22 and 23, as shown in FIG.
9 ₂ , and the fixture rail plate ₂₄ is also provided with a long hole as shown in FIG. A hole 31 is formed. 32 is the fixture rail plate 1 mentioned above.
4 is a stopper protrusion in the backward direction.

33 is a terminal cover attached to the front surface of the front case 3, and includes input terminal screw operation holes 34 ₁ ,
34 ₂ and output terminal screw operation holes 35 ₁ , 35
_2nd class has been formed.

In the above configuration, when attaching to a control panel (not shown), the attachment pieces 19 ₁ and 19 ₂ can be used for screwing. Furthermore, when attaching to the rail member M, the fixture rail plate 24 may be used. That is, the locking protrusion 2
1 and the locking claw portion 25 of the fixture rail plate 24, the rail pieces Ma and Mb of the rail member M are connected to the first
If they are engaged as shown in the figure, the fixture rail plate 24 will move back slightly, and the pair of spring pieces 27, 28 will come into contact with the regulating pins 29, 30, and will be elastically deformed in the direction of approaching each other, causing the fixture rail plate 24 to move backward. A spring force is applied to the plate 24 in the forward direction (arrow a direction). As a result, the locking force of the locking claw portion 25 to the rail piece Mb is strengthened, and the locking claw portion 25 is firmly fixed to the rail member M.

Here, the configuration described above can be attached to both the control panel and the rail member M, and one mounting piece 19 ₂ for the control panel can be attached to a pair of guide walls on which the fixture rail plate 24 is fitted. 2
Since it is constructed with a connecting piece between 2 and 23, the space on the mounting setting wall 2a can be used effectively.In other words, when the width dimension W (Fig. 4) of the relay main body 1 is reduced to make it thinner. However, it becomes easy to install the control panel mounting means and the rail member mounting means together.

Further, since one of the mounting pieces 19 ₂ is provided facing the fixture rail plate 24, the fixture rail plate 24 is attached to the guide walls 22, 2.
There is no fear of it coming off from the 3rd side, and vibration resistance can be strengthened.

In addition, although the above-mentioned embodiment is explained by taking as an example the application to a solid state relay, it goes without saying that the invention can also be applied to other electrical equipment.

[Brief explanation of drawings]

1, 2, and 3 are a side sectional view, a partially broken front view, a partially broken rear view, and FIG. 4, respectively, showing an example in which the electrical equipment mounting device according to this invention is applied to a solid state relay. 5 is a perspective view showing the same mounting device, and FIG. 5 is a perspective view showing a conventional mounting device for electrical equipment. 1...Equipment body, 2a...Mounting setting wall, 19 ₁
...Mounting piece, 19 ₂ ...Mounting piece (connecting piece), 21
... Locking protrusion, 22, 23 ... Guide wall, 24 ...
... Fixture rail plate, 25 ... Locking claw part, 2
7, 28...Spring piece, M...Rail member, Ma,
Mb...Rail piece.

Claims (1)

[Scope of utility model registration request] A pair of control panel mounting pieces protruding from both ends of the rectangular mounting setting wall in the longitudinal direction of the synthetic resin device body, and a pair of control panel mounting pieces located on both widthwise sides of the other end of the longitudinal direction. a pair of guide walls formed on the setting wall along the longitudinal direction; and a locking protrusion provided on the setting wall at one end side in the longitudinal direction and locking to one rail piece of the rail member. and a fixture rail made of synthetic resin, which has a locking claw portion at one end that engages with the other rail piece of the rail member, and is fitted between both the guide walls and configured to be movable forward and backward in the longitudinal direction. When both rail pieces of the rail member integrally formed with the plate and the fixture rail plate are respectively locked between the locking protrusions and the locking claws, they are elastically deformed against the fixture rail plate. It is composed of a pair of spring pieces that apply a spring force in the advancing direction and a mounting piece on the other end side in the longitudinal direction, and is connected between the pair of guide walls while facing the other end of the fixture rail plate. A mounting device for electrical equipment, characterized in that it comprises a connecting piece portion that is integrally connected.